| b69ab31 | | | 1 | /** |
| b69ab31 | | | 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| b69ab31 | | | 3 | * |
| b69ab31 | | | 4 | * This source code is licensed under the MIT license found in the |
| b69ab31 | | | 5 | * LICENSE file in the root directory of this source tree. |
| b69ab31 | | | 6 | */ |
| b69ab31 | | | 7 | |
| b69ab31 | | | 8 | let prefersReducedMotionValue = false; |
| b69ab31 | | | 9 | |
| b69ab31 | | | 10 | try { |
| b69ab31 | | | 11 | const prefersReducedMotionQuery = window.matchMedia('(prefers-reduced-motion: reduce)'); |
| b69ab31 | | | 12 | prefersReducedMotionQuery.addEventListener('change', () => { |
| b69ab31 | | | 13 | prefersReducedMotionValue = prefersReducedMotionQuery.matches; |
| b69ab31 | | | 14 | }); |
| b69ab31 | | | 15 | prefersReducedMotionValue = prefersReducedMotionQuery.matches; |
| b69ab31 | | | 16 | } catch (_e) { |
| b69ab31 | | | 17 | // testing-library does not define "window.matchMedia". |
| b69ab31 | | | 18 | } |
| b69ab31 | | | 19 | |
| b69ab31 | | | 20 | /** Returns `true` if the user wants reduced animation. */ |
| b69ab31 | | | 21 | export function prefersReducedMotion() { |
| b69ab31 | | | 22 | return prefersReducedMotionValue; |
| b69ab31 | | | 23 | } |